Pith Number

pith:5CMU7UUR

pith:2019:5CMU7UURVY5WGAY6ST5EEBOFWV

not attested not anchored not stored refs pending

Waves of desertification in a competitive ecosystem

G. Abramson, J. A. Monjeau, M. F. Laguna, Y. C. Daza C.

arxiv:1901.11335 v1 · 2019-01-31 · q-bio.PE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5CMU7UURVY5WGAY6ST5EEBOFWV}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:55:02.148690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8994fd291ae3b63031e94fa4205c5b55dd6b51e38ed623aaea1da69a2c7dbea

Aliases

arxiv: 1901.11335 · arxiv_version: 1901.11335v1 · doi: 10.48550/arxiv.1901.11335 · pith_short_12: 5CMU7UURVY5W · pith_short_16: 5CMU7UURVY5WGAY6 · pith_short_8: 5CMU7UUR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5CMU7UURVY5WGAY6ST5EEBOFWV \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e8994fd291ae3b63031e94fa4205c5b55dd6b51e38ed623aaea1da69a2c7dbea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13acfe3d5943e09784a2015ad58b03ccf5a226d77df6b08f7cef1687026e8195",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2019-01-31T12:55:23Z",
    "title_canon_sha256": "27c39565398809c906467758136f26db7e27db4832738d260df3525cb5d996dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.11335",
    "kind": "arxiv",
    "version": 1
  }
}